package com.song.common.config.redis;

import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.script.DefaultRedisScript;

@Configuration
@EnableCaching
public class RedisConfig {

    @Bean
    @SuppressWarnings(value = { "unchecked", "rawtypes" })
    public RedisTemplate<Object, Object> redisTemplate(RedisConnectionFactory connectionFactory) {
        RedisTemplate<Object, Object> template = new RedisTemplate<>();
        template.setConnectionFactory(connectionFactory);
        FastJson2JsonRedisSerializer serializer = new FastJson2JsonRedisSerializer(Object.class);
        // 使用StringRedisSerializer来序列化和反序列化redis的key值
        template.setKeySerializer(serializer);
        template.setValueSerializer(serializer);
        // Hash的key值也采用StringRedisSerializer的序列化方式
        template.setHashKeySerializer(serializer);
        template.setHashValueSerializer(serializer);
        template.afterPropertiesSet();
        return template;
    }

//    // 限流相关
//    @Bean
//    public DefaultRedisScript<Long> limitScript() {
//
//    }
//
//    // 限流脚本
//    private String limitScriptText() {
//        return "local key = KEYS[1]\n" +
//                "local count = tonumber(ARGV[1])\n" +
//                "local time = tonumber(ARGV[2])\n" +
//                ;
//    }

}
